Newhart (1982)

S4E24 Pre-Nups

George, Steph, and Michael Loudon receive an invitation to Arthur's birthday celebration at Vanderkellen mansion. During the festivities, Arthur pressures Michael to sign a pre-nuptial agreement, which he adamantly declines. Meanwhile, Steph grows concerned that Michael might be after her wealth rather than genuine affection. Tensions rise for Dick when he accidentally damages a music box that was a gift from Winston Churchill to Arthur, leaving him anxious about the consequences.